The study tracked drinking patterns among 40,000 people between the years of 2002 and 2003, and then again from 2012 to 2013 to create a long-term picture of their habits. The results are chilling, especially in light of other substance abuse crises plaguing the country.

Women, minorities, older people among most affected

Overall, alcohol use disorders rose by almost 50%, affecting a projected 8.5% of the population during the first research period, and 12.7% during the second. That’s almost 30 million Americans actively struggling with alcohol abuse.

The numbers are even more grim for certain groups. According to the research, alcohol use disorders have almost doubled (92.8%) among the African American population, and increased nearly 84% among women.

However, the group that saw the highest increase in alcohol abuse disorders actually wasn’t women or minorities. It was senior citizens. Individuals 65 and older saw a staggering 106.7% increase in alcohol use disorders from 2002/2003 to 2012/2013. For 45- to 65-year-olds, that increase was also high at 81.5%.

It’s not just alcohol abuse

The study didn’t just track alcohol abuse. It also tracked other patterns like “high risk” drinking, which the study defines as four or more drinks a day for women and five for men, plus a day that exceeds those limits at least once a week.

“High risk” drinking has increased on pace with alcohol abuse, swelling from 9.7 percent of the population in 2002-2003 to 13.7 percent of the population in 2012-2013.

A chilling echo

The study was conducted by researchers from the National Institute on Alcohol and Alcoholism, the New York State Psychiatric Institute and Columbia University, and relied on rigorously controlled self-reporting of drinking habits. While there was no clear reason as to the increases, researchers claimed it constitutes a “public health crisis” on par with the current national opioid crisis.

“Most important, the findings…highlight the urgency of educating the public, policymakers, and health care professionals about high-risk drinking and [alcohol use disorders], destigmatizing these conditions and encouraging those who cannot reduce their alcohol consumption on their own..to seek treatment,” the study posits.

“While any amount of alcohol abuse is too much, the claims published in JAMA Psychiatry do not comport with findings of the National Survey on Drug Use and Health, the federal government’s leading survey that tracks substance use disorders,” Sam Zakhari, the Distilled Spirits Council senior vice president of science, said in a statement.”The NSDUH shows a decline in alcohol use disorders among all age groups.”